000 00287nam a2200121Ia 4500
008 200906s9999 xx 000 0 und d
082 _a517.38 W358
100 _aWAYLAND.H
245 0 _aDIFFERENTIAL EQUATIONS
260 _bVAN NOSTRAND, NEW YORK
_c1958
300 _a23X15
942 _cBK
999 _c61137
_d61137